Browse Items (14 total)

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Ingersoll Milling Machine Company's first EDM (electrical discharge machining) high power dual lead power supply.

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An Ingersoll Milling Machine Company EDM (electrical discharge machining) machine manufactured for Chrysler Corporation in Sterling, Michigan. This was the largest EDM machine made.

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Bob Bertolasi in a laboratory working on Ingersoll Milling Machine Company's first proprietary EDM (electrical discharge machining) supply.

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Ingersoll Milling Machine Company EDM (electrical discharge machining) power supply. This machine was a high kilowatt version for die forming machines. It was manufactures for General Motors Company in Grand Blanc, Michigan

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Ingersoll Milling Machine Company EDM (electrical discharge machining) power supply with a reversible polarity unit for tool shops and die makers.

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An Ingersoll Matson EDM (electrical discharge machining) dual lead power supply.

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An EDM (electrical discharge machining) machine manufactured by Ingersoll Milling Machine Company through its subsidiary Matson. This machine was made for the Matson demonstration room.

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An EDM (electrical discharge machining) machine manufactured by Ingersoll Milling Machine Company through its subsidiary Matson. The machine was made for Fisher Body of Grand Blanc, Michigan.

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An Ingersoll Matson EDM (electrical discharge machining) single lead power supply.

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An EDM (electrical discharge machining) machine manufactured by Ingersoll Milling Machine Company for its show floor. Note the nameplate indicates that the machine was made with its subsidiary Matson.

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Ingersoll Milling Machine Company EDM (electrical discharge machining) power supply. This was a multilead version for aerospace applications. It was manufactured for General Electric Company and Pratt Whitney.

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(From right to left) Bob Bertolasi, Ron Weaver, and Doug Hood introduce the Ingersoll Milling Machine Company 20micro, .0001tol 48 lead power supply that was designed for IBM.

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Distributors being trained on a new line of Ingersoll Milling Machine Company EDM (electrical discharge machining) power supplies. Leading the training at left is Bob Bertolasi.

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EDM (electrical discharge machining) machine made by Ingersoll Milling Machine Company. This was the first machine produced after Matson become a subsidiary of Ingersoll.
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